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Showing 1 to 20 of 203 for “"cathodic"”.
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Cathodic reduction
Thesis: B.S., Massachusetts Institute of Technology, Department of Chemistry, 1903
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Cathodic electrodeposition of metal-organic frameworks
… still much desired. In this thesis, I describe cathodic electrodeposition as an alternative approach to MOF crystallization, which is traditionally achieved solvothermally via ligand deprotonation through in-situ formation of base (often by amine release from the decomposition of an amide …
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CATHODIC PROTECTION OF REINFORCEMENT BARS IN CONCRETE
… involved investigation of various aspects of cathodic protection in corrosion prevention of the steel reinforcement in concrete. The performance evaluation of cathodic protection, a very important aspect in its operation was widely dealt with. Various criteria used in the cathodic protection …
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Preventing Stern Tube Corrosion through Shipboard Cathodic Protection
Cathodic protection extends the life of ships and decreases the cost of maintaining a ship fleet. Ships built with less noble metals, like steel, will corrode alarmingly and require protection. This work aims explicitly to present an analysis of the cathodic protection of a stern tube, a complex …
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Using cathodic protection to control corrosion of reinforced concrete structures
Cathodic protection (CP) has been increasingly used on reinforced concrete structures to protect steel reinforcement from corrosion. However, due to the complexity of environmental conditions, the specifications in national and international standards are still open to discussion in engineering …
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Anodic Deposition and Cathodic Stripping of Iron in Acetate Medium
Made available in DSpace on 2014-12-10T23:01:08Z (GMT). No. of bitstreams: 1 7115011.pdf: 2941996 bytes, checksum: 383d8bd146a82f576d71dd255d780b77 (MD5) Previous issue date: 1970
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Carbon thin films with enhanced properties from cathodic arc plasmas.
… films deposited using a filtered and unfiltered cathodic arcs are investigated. Firstly, the plasma properties of the filtered cathodic vacuum arc (FCVA) have been examined using planar and wire Langmuir probes in order to optimize the plasma throughput around the 90� bend. The knowledge of …
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Corrosion and cathodic protection of iron in differential temperature cells
Thesis (B.S.) Massachusetts Institute of Technology. Dept. of Chemical Engineering, 1950.
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An interdisciplinary study of cathodic debonding in elastomer/metal adhesive bonds
… of OH⁻ ions at the bondline due to an imposed cathodic current from an external source is suspected to be the predominant cause of failure. A surface analysis study was performed early in this research for the purpose of identifying the cause(s) of failure. Characterization of the rubber and …
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Mechanical and cathodic protection aspects of multi-barrier tuff repository canister designs
… and a sacrificial anode was designed to cathodically protect the waste package for a period of 10,000 years. The sacrificial anode is to be made of magnesium. Langelier and Larson's Indices were calculated and speciation calculations of J-13 water was carried out with the help of a …
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CATHODIC DEPOSITION OF TRIANGULAR TUNGSTEN CLUSTERS FROM IONIC LIQUIDS: AN EXPLORATIVE STUDY
… ionic liquids (ILs) and subjected to a cathodic potential of roughly 2V. It was proposed that successful deposition of these metal clusters on a platinum electrode would yield Pt-supported anodic catalysts which could be used in ethanol fuel cells (EFCs). Visual examination of the …
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Development of New Cathodic Interlayers with Nano-Architectures for Lithium-Sulfur Batteries
Issues with the dissolution and diffusion of polysulfides in liquid organic electrolytes hinder the advance of lithium–sulfur (Li-S) batteries for next generation energy storage. To trap and re-utilize the polysulfides, brush-like, zinc oxide (ZnO) nanowires based interlayers were prepared ex-situ …
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Electrowinning of cobalt at high cathodic current densities (400-1000 A M-2)
Current densities from 40O Am to 1000 Am were used to investigate the electrowinning of cobalt from sulfate solutiaiie. The cell used was a cylindrical beaker of 1000 ml capacity. Two lead anodes and one stainless steel cathode were used as - electrodes. The cathode was prepared electrolytically …
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The mechanism of cathodic depolarization exhibited by sulphate-reducing bacteria during metallic corrosion processes
… that enzymic catalysis of sulphate reduction by cathodic charge constituted a "cathodic depolarizing" process, which appears t o be widely accepted as the most likely mechanism for this corrosive effect, is evaluated critically here in the light of established electrochemical and biochemical …
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Numerical modelling and underlying electrochemical mechanism characterisation of cathodic protection for chloride contaminated reinforced concrete structures
Cathodic Protection (CP) as an effective electrochemical repair technique has been widely employed in the rehabilitation of deterioratedReinforced Concrete (RC) structures worldwide. However, the quantitative specifications of CP technology for RC structures in national and international standards …
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Electrochemical impedance spectroscopy as a method of predict delamination of coated steel in cathodic disbondment tests
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1997.
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The effect of magnesium ions on the current efficiency of magnesium anodes used as cathodic protectors
… efficiency of magnesium anodes, when used as cathodic protectors of steel, is generally unaffected by changes in the concentration of magnesium sulfate in the backfill. It may be further stated that the presence of manganese ion also has no effect upon the current efficiency. The results …
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A study on the cleaning and modification of metal surfaces by direct current cathodic electrolytic plasma process
The processes of surface treatments or surface modifications, more formally known as surface engineering, tailor the surfaces of engineering materials. The treatments are usually intended to change physical properties such as thermal or electrical conductivity, modify the surface dimensions, i.e. …
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Roles of surface finish and hydrogen availability on the tensile properties of 1018 steel in hydrogen environments
… surface finishes were tested at various cathodic charging current densities. The tensile deformation was initiated only after the specimen was charged to at least 95% with hydrogen. The data presented in this study show that very low cathodic charging current densities result in larger …
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